cpp-game-engine/math/include/game/math/common.hpp

//
//  common.hpp
//  math
//
//  Created by Sam Jaffe on 8/20/16.
//

#pragma once

#include "math_fwd.hpp"

namespace math {
  vec2 rotate(vec2 const & center, vec2 const & point, radian r);
  dim2::quad rotate(vec2 const & center, dim2::quad const & q, radian r);

  bool contains(dim2::line const & shape, dim2::point const & pt);
  bool contains(dim2::circle const & shape, dim2::point const & pt);
  bool contains(dim2::quad const & shape, dim2::point const & pt);

  bool intersects(dim2::line const & lhs, dim2::line const & rhs);
  bool intersects(dim2::line const & lhs, dim2::circle const & rhs);
  bool intersects(dim2::line const & lhs, dim2::quad const & rhs);
  bool intersects(dim2::quad const & lhs, dim2::line const & rhs);
  bool intersects(dim2::quad const & lhs, dim2::circle const & rhs);
  bool intersects(dim2::quad const & lhs, dim2::quad const & rhs);
  bool intersects(dim2::circle const & lhs, dim2::line const & rhs);
  bool intersects(dim2::circle const & lhs, dim2::quad const & rhs);
  bool intersects(dim2::circle const & lhs, dim2::circle const & rhs);
}

namespace math {
  inline bool intersects(dim2::quad const & lhs, dim2::line const & rhs) {
    return intersects(rhs, lhs);
  }
  inline bool intersects(dim2::circle const & lhs, dim2::line const & rhs) {
    return intersects(rhs, lhs);
  }
  inline bool intersects(dim2::circle const & lhs, dim2::quad const & rhs) {
    return intersects(rhs, lhs);
  }
}